Air Comfort Air Treatment Housing ventilation MODBUS RS485» Technical instructions
2 Modbus RS485 Technical instructions Description, Connections, Presentation, decimals Description RS485 has two connections, A and B. Often there is also a protective earth, ground. RS485 units are connected A to A and B to B. You may have to shift A and B in order for Modbus to work. RS485 is so called half duplex communication: Communication can only go in one direction at a time; i. e. the master will first send an enquiry and will then listen for the reply. A and B are used for both transmission and reception. Connection to control board A to terminal 70 B to terminal 69 Modbus RS485 A B GND Ground to terminal 68 See figure to the right. 1 N 70.69.68 67.66.65.64 Default settings for RS485 communication is: Com speed 19200 Parity None Data bits 8 Stop bits 1 2 L 3 N 4 L 5 N 6 L 7 N 8 L A USB 51 50 49 48 47 46 Presentation 1 bit status are presented as 0=off and 1=on 1 bit alarm are presented as 0=Normal and 1=Alarm 16 bit real values are presented in their actual value. E.g. %, Pa, l/s B 27 28 37 38 Decimals When Modbus are using a 16 bit register to handle real values, a factor must be used to have decimals. All temperature values and set points have a factor 10 and must then be divided/multiplied with 10 in the Master device. Fläkt Woods 9458GB 2016.11.23 Specifications are subject to alteration without notice
Technical instructions Modbus RS485 3 Parameter list CoilS Address R / R/W 1) Description Comment I/O Range Default Housing eco Premium eco Top VEKC 00013 R External timer 1 DI1 Yes/No 00014 R External timer 2 DI2 Yes/No 00020 R Pressure switch, supply filter 2) DI5 Yes/No 00022 R Pressure switch, extract filter 2) DI6 Yes/No 00025 R Cooker hood switch DI9 Yes/No 00033 R By-pass Damper DO5 Yes/No 00085 R Summer/Winter Mode 1=Summer 0=Winter 00094 R Fire alarm Alarm Yes/No 00095 R/W Sensor error supply temperature Alarm Yes/No 00096 R/W Sensor error out door temperature Alarm Yes/No 00097 R/W Sensor error extract/room temperature Alarm Yes/No 00098 R Sensor error frost protection Post heater. Alarm Yes/No 00099 R/W Sensor error defrost temperature Alarm Yes/No 00105 R/W Dirty filter Alarm Yes/No 00106 R/W Supply fan error Alarm Yes/No 3) 00107 R/W Extract fan error Alarm Yes/No 3) 00110 R/W Frost alarm Plate heat exchanger Alarm Yes/No 00111 R/W Rotary heat exchanger failure Alarm Yes/No 00112 R/W Filter alarm, supply air 2) Alarm Yes/No 00113 R/W Filter alarm, extract air 2) Alarm Yes/No 00114 R/W Over heating electrical heater Alarm Yes/No 00115 R Pump/ heater malfunction Alarm Yes/No 00116 R Freezing hot water battery Alarm Yes/No 00117 R/W Summary alarm cooler Alarm Yes/No 00118 R/W Pump/cooling malfunction Alarm Yes/No 00182 R/W Acknowledge all Alarm 00184 R/W Temperature alarm Alarm Yes/No 00214 R Humidity control running Yes/No 1) R = Read only, R/W = Read/Write 2) Accessory 3) Only when COP/CAV Fläkt Woods 9458GB 2016.11.23 Specifications are subject to alteration without notice
4 Modbus RS485 Technical instructions Parameter list Holding register Address R / R/W 1) Description Comment I/O Range Default Housing eco Premium eco Top VEKC 40025 R Supply air Temperature AI1 40,0 - +100,0 C 40026 R Out door air Temperature AI2 40,0 - +100,0 C 40027 R Extract/room air Temperature AI3 40,0 - +100,0 C Freezing protection post 40028 R Temperature AI4 40,0 - +100,0 C heater 40030 R Defrost air Temperature AI5 40,0 - +100,0 C 40032 R CO 2 Air quality AI6 0-2000 ppm 40035 R Humidity 1 Supply AI9 0-100 %rh 40036 R Humidity 2 Extract AI8 0-100 %rh 40037 R Pressure supply air 4) AI7 0-1000 Pa 40038 R Pressure extract air 4) AI8 0-1000 Pa 40039 R Airflow supply air 5) Calculated 0-? m 3 /h 40040 R Airflow extract air 5) Calculated 0-? m 3 /h 40041 R Fan speed, Supply air Signal AO1 0-100 % 40042 R Fan speed, Extract air Signal AO2 0-100 % 40043 R Post heating Signal AO3 0-100 % 40044 R Pre heating Signal AO4 0-100 % 40045 R Cooling 2) Signal AO5 0-100 % 40046 R Rotary heat exchanger Signal AO6 0-100 % 40049 R/W Set point Temperature 15,0-35,0 C 18 40054 R/W Min supply air temperature Temperature 15,0-35,0 C 15 40055 R/W Max supply air temperature Temperature 15,0-35,0 C 35 40073 R/W Set point CO 2 Air quality 0-2000 ppm 800 40078 R/W Supply fan speed trickle Speed low 30-100 % 30 40079 R/W Supply fan speed normal Speed normal 30-100 % 55 40080 R/W Supply fan speed boost Speed high 30-100 % 75 40081 R/W Supply fan speed cooker hood Speed 30-100 % 30 40082 R/W Supply fan speed fireplace Speed 30-100 % 100 40083 R/W Extract fan speed trickle Speed low 30-100 % 30 40084 R/W Extract fan speed normal Speed normal 30-100 % 55 40085 R/W Extract fan speed boost Speed high 30-100 % 75 40086 R/W Extract fan speed cooker hood Speed 30-100 % 100 40087 R/W Extract fan speed fireplace Speed 30-100 % 30 0 = Stop 1 = Auto 40213 R/W Main switch 0-3 2 = Manual 3 = Fire place 0 = Trickle/low 40202 R/W Fan speed 1 = Normal 0-2 2 = Boost/High 40094 R/W Setpoint air pressure 4) Supply air 0-2000 Pa 40101 R/W Setpoint air pressure 4) Exhaust air 0-2000 Pa 40095 R/W Setpoint airflow trickle 5) Supply air low 0-9999 l/s 40222 R/W Setpoint airflow normal 5) Supply air normal 0-9999 l/s 40223 R/W Setpoint airflow boost 5) Supply air high 0-9999 l/s 40102 R/W Setpoint airflow trickle 5) Exhaust air low 0-9999 l/s 40224 R/W Setpoint airflow normal 5) Exhaust air normal 0-9999 l/s 40225 R/W Setpoint airflow boost 5) Exhaust air high 0-9999 l/s 40275 R Active TemperatureSetpoint Temperature 0,5-50,5 C 40277 R/W Dirty filter alarm time 0 = Filter alarm disabled 0-600 days 180 1) R = Read only, R/W = Read/Write 2) Accessory 4) Only when COP, Constant Pressure Control 5) Only when CAV, Constant Air Volume Control Fläkt Woods 9458GB 2016.11.23 Specifications are subject to alteration without notice
FWG-Modbus Technical instructions-gb-2016.11.23 9458GB Copyright 2016 Fläkt Woods Group We bring better air to life www.flaktwoods.com Modbus 9458GB 20161123 With over a century of innovation and expertise to share with our customers, Fläkt Woods is a global leader in Air Technology products and solutions. We specialize in the design and manufacturing of a wide range of products and solutions for Air Movement, Air Treatment, Air Distribution, Air Management and Air Diffusion with focus on two major benefits Air Comfort and Fire Safety. With market presence in 65 countries we are in a unique position to be a local supplier and an international partner in our customer s projects. Our product brands such as SEMCO, eq, eq Prime, JM Aerofoil, Econet, Veloduct, Optivent, Optimix, Econovent and Cleanvent are well-known and trusted by customers all over the world to deliver high quality and energy efficient solutions.» To learn more about our offering and get in contact with your nearest sales representative please visit www.flaktwoods.com